authz: use `dbtest.NewDB` to replace `dbtesting.SetupGlobalTestDB` in tests
Created by: unknwon
Faster test DB setup.
Follow up of https://github.com/sourcegraph/sourcegraph/pull/11778#discussion_r447574834.
Created by: unknwon
Faster test DB setup.
Follow up of https://github.com/sourcegraph/sourcegraph/pull/11778#discussion_r447574834.